Hello Odooers of the world. 

I have a very odd problem.  
Specifically calendar notifications reach mobile apps at 1800hrs every day all together .

CRM notifications arrive after record creation, helpdesk notifications arrive just after the email is parsed, etc etc

But calendar events are skipped and all of them arrive at 1800hrs-1804hrs 

I don't know which scheduler is responsible for this.  

Any ideas or suggestions are welcomed. 

For context, Odoo v16 Enterprise, Self hosted